Dyno'd Ractive header.

[Blown]

As the title says I dyno'd it last night, the temperature was a lot colder and my car wasn't fully warmed up(numbers could be ~2-3whp lower). But:

Baseline: 114.4whp @ 5901rpm, 107.6ft-lbs @ 4041rpm
First run: 118.5whp @ 5648rpm, 116ft-lbs @ 3662rpm
Gains: 4.1whp & 8.4 ft-lbs

I can scan the dyno charts but I have no one to host them.

[Blown]

My original 116whp was obtained after 3 successive dyno runs and was the consistant number. My 114.4whp was my first run and the 118.5 was my first run with the header installed.

[sam1]

cool. thats good to know. thanks

[YP5 Toronto]

perfect example of what this forum is about.... good info and post that sheet (when you can).

You can host them on this board.... go to your "USER CP"...then go to the bottom right "upload files"..then the rest is straight forward.

[KYMP5]

thats cool man. a 4 horse gain. not bad for a 200 dollar part. i cant wait to get mine.

[tonkabui]

can't wait to see the chart.

[Prop Cop]

so 4hp-8lb/ft canadian. That make it like 2hp-5lb/ft U.s. right?

[KYMP5]

lmfo

[Blown]

Nah, SAE is bilingual(Canadian/American/English/French/etc...). Only problem with the chart is that it's not corrected to sea-level. Altitude has an adverse effect the higher up you go.

[Blown]

Okay... Peoples, wanna help me scan the dyno? I need some pointers please. I can't get the clarity I need. And, should I save it pdf or jpg? What kind of resolution should I scan it to?

[ChopstickHero]

scan it at a high resolution. then scale it down appropriately. don't lower the jpg quality too low, or else you will lose detail. you could try pdf, but a jpg is easier to handle.

[iluvmacs]

So the peak horsepower is now at a lower RPM, and the torque peak is also at a lower RPM....

Send a picture of this header so that I make sure NOT to buy it.

[YP5 Toronto]

So the peak horsepower is now at a lower RPM, and the torque peak is also at a lower RPM....

Send a picture of this header so that I make sure NOT to buy it.
Why the negitivity on a perfectly good post? Why bother bother posting? He has taken the time to share information....

[Bijou-MP5]

two thumbs up!! I can't wait to get mine either!!!

[herbieP5]

Where would be the best place to buy this?

isnt there a dealer for ractive that frequents the forums.

in fact I think he has a red P5.

I want to but one of these headers

[uclap5]

So the peak horsepower is now at a lower RPM, and the torque peak is also at a lower RPM....

Send a picture of this header so that I make sure NOT to buy it.


um, whats wrong with peaking at a lower rpm?

it increases every day drivability and usable torque.

maybe thats not what everyone is looking for, but its clearly not the negative thing you are making it to be.

[Blown]

So the peak horsepower is now at a lower RPM, and the torque peak is also at a lower RPM....

Send a picture of this header so that I make sure NOT to buy it.
Man, you sure don't know tuning and performance. Sure, the peaks happen earlier but I'm still making 10+ft/lbs of torque over baseline all the way to 5300rpm or so. Also, HP acts the same way. Overall, I have more power earlier and it stays longer, who wouldn't want that?

[YP5 Toronto]

Lets also face it....this is a STREET car...I rather have the power and torque a "bit" lower in the RPM band.

This type of crap pisses me off....(thats my own fault for letting it).

[Blown]

http://www.msprotege.com/members/Blown/Dyno/Dyno2.jpg

[Blown]

Here is my first dyno minus the header. There are 3 seperate runs, bottom one was when the car was cold and the highest one was when the car was warmed up. To keep it a fair comparison, the cold run(114.4whp) was used to compare the run with the header.

http://www.msprotege.com/members/Blown/Dyno/Dyno1.jpg

[KYMP5]

id rather just have more power period

[FrigginGLI]

I agree.

[FunkyBuddha]

Same here...wonder when I get my header back from the ceramic coating place. I also wonder how the cams/header combo will affect overrall performance. One way to find out! Stay tuned.

[tonkabui]

looking good. nice smooth power band. congrats.

[Blown]

Thanks everyone for the support.

[iluvmacs]

Sorry about that post. I disagree with you all, but kudos to blown for spending all the time to give us the information. I/We appreciate it.

I didn't see the graphs before, and now that I have, I'm kinda surprised. I think the only reason for the earlier peaks is the cam timing. Other than that, it looks awesome.

[johnjay5]

hey blown are you experiencing rubbing against the oil pan because I am and its bother the crap out of me everytime I come to a stop. Is this rubbing against the oilpan hurting my car in any way? As for the dyno it looks right, i feel the extra hp in the lower and midrange, but to think of it, I can hit over a 100 mph much faster than before. With this header you'll feel a pull in the lower and mid range portion of the band! -JJAy

[Blown]

Iluvmacs - Yeah, our stock cams/timing don't warrant a higher powerband.

Johnjay - I have no rubbing at all. There is at least .5" gap between the pan and the header.

[Laser03pro]

Damn i want these so they r a nice fit?

[FunkyBuddha]

Damn i want these so they r a nice fit?
They are a nice fit man. So far, out of the 1st group buy of 5 people, no one has complained about the header I sold them. No rubbing, no exhaust leaks, fits pretty good and the welds are good for something less than 300 cdn.

[Maxx Mazda]

They are a nice fit man. So far, out of the 1st group buy of 5 people, no one has complained about the header I sold them. No rubbing, no exhaust leaks, fits pretty good and the welds are good for something less than 300 cdn.
I dunno about fit. Me and Em's (Pr5owner) rubs on the oil pan. It touches it pretty goo though, but if you kinda slip the clutch when the car is cold, it'll rattle like a muh-fucka. That's Ractive's fault though. They should have designed a bend around it. Meh. Overall, worth the money all the way. What do you expect for $200?
(hi)

[P5LawnMan]

As the title says I dyno'd it last night, the temperature was a lot colder and my car wasn't fully warmed up(numbers could be ~2-3whp lower). But:

Baseline: 114.4whp @ 5901rpm, 107.6ft-lbs @ 4041rpm
First run: 118.5whp @ 5648rpm, 116ft-lbs @ 3662rpm
Gains: 4.1whp & 8.4 ft-lbs

I can scan the dyno charts but I have no one to host them.Nice gain good info :)

[mp5jeff]

think thats the 1st time ive seen these engines dyno with less torque then hp...

[TheJackyl]

Where can you get this header?

[pr5owner]

so with....

-HKS Hi Power exhaust
-HKS Super Mega Flow Filter
-HKS Circle Earth System
- Magnecor 8.5mm wires

114.4whp @ 5901rpm, 107.6ft-lbs @ 4041rpm

and thats comming from 99.xxhp stock wow! 14hp from an intake/exhaust thats actually kinda hard to believe

[Blown]

TheJackyl - Ractive has not yet released them into the US market. We can order them in Canada but it seems that production is about a month behind now. I know there is a groupbuy someone from the US is doing.

I think I heard a rattle this morning(briefly for about a second or two) but I know it could be caused by a couple of things.

[FrigginGLI]

The tq should be higher then the hp , makes no sense.

[pr5owner]

well hes not dyno'n just the header, he dyno'd intake, exhaust, ground wires, blah blah blah blah blah, if it was just the header the hp/tq would probably be =, in most situations your other mods will complement the header and vise versa

[Blown]

Pimpprotege69 - Once you get rid of your stock cat, stock exhaust, stock header, and stock intake box you lose a lot of backpressure. Which means, more higher end HP but you lose torque.

PR5owner - There was a EX sedan withan axleback-exhaust/injen intake pulling 110-111whp that day. So, really, not so unbelievable.

[tonkabui]

that's a real friendly dyno then, i'd say. but whatever. the gains are still there regardless of what the dyno says. baseline and peak numbers may or may not be skewed, but the gains are still noticeable.

[pr5owner]

hmm that means i should have more than 15WHP gain with my

Injen Cai
Catback + Apexi N1
sparco ign wires
hyperground
ractive headers

[Blown]

P5owner - $50 for 3 dyno runs in Edmonton.

[mp5smuggler]

looking at this i have to admite its great to have these threads. i did a similar thread for when i got my wagner motorsports shorty header put on. is this header get rid of the pre cat? does it have the egr pipe on it?

the wagner has the egr pipe and it keeps the stock precat. it made a lil more power but only a few extra hp though which could be due to weather gas ect ect ect.

[pr5owner]

we need to put the headers on upside down, cut a hole in the hood, and that is that....

[Maxx Mazda]

we need to put the headers on upside down, cut a hole in the hood, and that is that....
Not this idea again... I thought I told you the first time that it wouldn't work LOL! Any ideas on the CEL yet man? Lets let Glen Guinea Pig.

[FunkyBuddha]

I AM the Guinea Pig!! Always have, always will be :)

mp5smuggler - the header has the egr bung and tosses the pre-cat.

[mp5smuggler]

hmm well with the wagner shorty you dont have a cel problem and no problems with emissions either. i wanna see some photos though and see how cool these look though

[Maxx Mazda]

hmm well with the wagner shorty you dont have a cel problem and no problems with emissions either. i wanna see some photos though and see how cool these look though
I put some pics in my album here:

http://www.imagestation.com/album/?id=4287244753

[FunkyBuddha]

hmm well with the wagner shorty you dont have a cel problem and no problems with emissions either. i wanna see some photos though and see how cool these look thoughYou don't have a cel problem because you still have that 2nd o2 sensor bung.

[mp5smuggler]

ah ok .... what about emisons? the photos looked nice but no real close ups of the headers

[Maxx Mazda]

ah ok .... what about emisons? the photos looked nice but no real close ups of the headers
Your car won't be emmissions legal and will have a CEL unless you re-install the 2nd O2 sensor, or get a MIL eliminator.

[Laser03pro]

Which hood is that maxx ur car looks good

[Maxx Mazda]

That's the iON V-Weave hood. I had the sides painted red and black as you can see.

[pr5owner]

That's the iON V-Weave hood. I had the sides painted red and black as you can see.
you didn't paint it black you dumb ass haha j/k

[Maxx Mazda]

Ya, look at the pics dumbass!!!!!!! There's a black stripe... bah, I'll show you next meet.

[pr5owner]

Ya, look at the pics dumbass!!!!!!! There's a black stripe... bah, I'll show you next meet.
quiet dumbass your not allowed to post anymore

[FunkyBuddha]

Shuddup both of you. I OWNAG3 you both!!

[Laser03pro]

Yeh i noticed how you had it painted but i also like the fit where can u get them from.

[FunkyBuddha]

Yeh i noticed how you had it painted but i also like the fit where can u get them from.
The hood? It's an Ion Performance Vweave hood.

Email: jack@ionperformance.com

[Maxx Mazda]

Thanks Glen. :)

[FunkyBuddha]

Got my header back this morning! Ceramic coated inside and out too! Paid 160bux. 2nd o2 sensor bung has been welded in as well. :)
Now who wants to help me install this puppy since I don't got a driveway :)

[YP5 Toronto]

mmm.....ceramic coating.....good investment!

[Laser03pro]

So you paid 160 for the coating right how much did you pay for your headers.

[FunkyBuddha]

Paid 295cdn

[Replica]

The tq should be higher then the hp , makes no sense.I don't get it either. I dynoed 101 whp, 111 trq. So it lost a bunch of trq and added a bunch of hp? Why bother?

[Mike R]

The tq should be higher then the hp , makes no sense.
It's a 4-1 header, that's what they do. They produce gains in the higher RPM range compared to a 4-2-1 style header.

[Replica]

It's a 4-1 header, that's what they do. They produce gains in the higher RPM range compared to a 4-2-1 style header.Using a 4-1 header seems like it just moves power around instead of making more. I had a 4-1 Kamakazi with a 2.25 collector on my civic, only reason I did a 4-1 is because it was supercharged and the primaries were huge! I don't think I'd want to do a 4-1 on a "torquey" 4cyl. The numbers are good though, just not a fan of losing torque.

[iluvmacs]

what RPM did you make each number at? That has a big effect on other things, including future engine mods.

From what people have told me, unless you get cams, it's better to get the 4-2-1 headers so that you don't lose torque. This is the chrome, ractive, 4-1 we're talking about right?

[Mike R]

Using a 4-1 header seems like it just moves power around instead of making more. I had a 4-1 Kamakazi with a 2.25 collector on my civic, only reason I did a 4-1 is because it was supercharged and the primaries were huge! I don't think I'd want to do a 4-1 on a "torquey" 4cyl. The numbers are good though, just not a fan of losing torque.
Yep, they are better suited for a Honda(or any other high RPM 4 banger). I remember the debate about the 4-1 on the FS when the group buy was going on. I wouldn't get one for my car. I'm waiting for a used AWR at the moment :D The numbers are good, but for what I'm doing I want as much tq as possible.

For the price and the fact that it's 1 of only 3 direct fit headers it good deal.

[Replica]

what RPM did you make each number at? That has a big effect on other things, including future engine mods.

From what people have told me, unless you get cams, it's better to get the 4-2-1 headers so that you don't lose torque. This is the chrome, ractive, 4-1 we're talking about right?Max torque was around 3600 and max Hp was at 5900. I'll make a post when I get home and can upload all the information, the graph, pic and video. It'll be nice to have a solid, easy to search for, stock dyno. :)

[Blown]

I don't get it either. I dynoed 101 whp, 111 trq. So it lost a bunch of trq and added a bunch of hp? Why bother?
If you look at my dyno-chart you can see that it started to add torque from 3000rpm and on over my baseline. I don't mean a little tq but a lot of tq! It's all in the design of the header. Sure, typical 4-1 race headers are used for high-end gains in the honda camp but they are also used for mid-range gains. It has to do where the placement of the collector is.

[scorch70]

Just for comparison, I dyno'd after installing the AWR header, and gained 8 whp and 3 tq. Not quite what I expected. I'll scan in the dyno sheets tomorrow and add a link.


scorch70

[Replica]

If you look at my dyno-chart you can see that it started to add torque from 3000rpm and on over my baseline. I don't mean a little tq but a lot of tq! It's all in the design of the header. Sure, typical 4-1 race headers are used for high-end gains in the honda camp but they are also used for mid-range gains. It has to do where the placement of the collector is.I'm having a hard time reading your dyno on page 2 (silly)
107 before the header and 116 after? My baseline was 111 so with exhaust and header you made 5 trq over my baseline. It isn't a fair comparison though, as all motors and dynos are different. Not all power adders are concurrent with other cars results. Blah, I wish this was an exact science! (cheers)

[Blown]

Replica - 107 .7 is not corrected for sea-level. We're at 2200ft above sea-level, so, it's detrimental to the HP output. If you look at my first dyno chart, 114.4HP is corrected for sealevel(the baseline, the other 2 lines were of the car warmed up). So, I crossed out the numbers on my 2nd chart and replaced them with the corrected values. At the time of my baseline, a ES was there with I/E and was putting out similar numbers. Even if you look at Scorch's results, we're all around the same place. Except my tq is low. Must be something to do with my grounding kit.

[Replica]

Replica - 107 .7 is not corrected for sea-level. We're at 2200ft above sea-level, so, it's detrimental to the HP output. If you look at my first dyno chart, 114.4HP is corrected for sealevel(the baseline, the other 2 lines were of the car warmed up). So, I crossed out the numbers on my 2nd chart and replaced them with the corrected values. At the time of my baseline, a ES was there with I/E and was putting out similar numbers. Even if you look at Scorch's results, we're all around the same place. Except my tq is low. Must be something to do with my grounding kit.I actually do not know if mine is corrected for sea level. (boom07)
Houston is pretty low.

[Blown]

Houston, TX is 48ft above sea-level. Chances are, you really don't need a correction factor or it won't make much significance.

[iluvmacs]

Before we get going too far with dynos, what improvements did you notice in the following things:

throttle response
flywheel spool time/speed (how long does it take to rev)
handling improvements due to weight reduction
anything else

thanks.

[Maxx Mazda]

Throttle response is much better with my Ractive. Throw aside the actual dyno results for a second, and let my old ass dyno tell the story. :) The bottom end torque has picked up quite a bit, making the car much more streetable. It really has more pull throughout the powerband, but espesially in the lower ranges where the car struggled before. The sound is intoxicating. Very throaty and loud with my Mazdaspeed exhaust. Ask Glen (FunkyBuddha) what he thinks. Him and I just put his on this morning.

[FunkyBuddha]

Ok..Maxx Mazda and I just put mine on this morning. Woot!

iluvmacs - maybe I can answer some of your questions.

Throttle response - big time improvement. tap the gas lightly, and the tach needle jumps

Flywheel spool time/speed - can't really tell but the rev time is basically matched to throttle response and it's quite a bit faster. Launches are easier and heal/toe techniques are easier as it rev matches quicker on the downshifts.

No noticeable handling improvements for me although we did lose about 10-20lbs.

Oh if you guys are thinking about this header, get it ceramic coated. My engine bay is noticeably cooler and my intake pipe isn't as warm as it used to be.

[iluvmacs]

awesome, I can't find the website to buy, can you help me out? I want to bookmark it so I don't lose it again.

[FunkyBuddha]

there should be a group buy set up by one of the members for the states. just search for Ractive Header and you'll find it

[p5sundevil]

yah i set up the GB a long ass time ago and it has evolved many times since then. we now have a confirmed shipping and delicery date to KYMP5 in florida and then he will collect the cash from the GB members and ship them on out. GB pricing is 200 shipped in the states.

[FunkyBuddha]

Ok guys! Good news! As you know, MaxxMazda and I installed the header today. No CEL as of yet and I have travelled just over 100km today. No CEL yet. I will keep you guys posted on progress. I have a feeling it might come on.